Hierarchical electrohydrodynamic pattern formation enables the fabrication of multiscale 3D structured arrays as SERS-active platforms.
Technology
Graphene Sensor Makes Light Work of Detecting Chemicals
A new type of hot electron bolometer has been developed from graphene, with great potential for sensing applications of all kinds.
Electrochemistry Reversibly Switches Optical Response
A novel metal deposition-based electrochromic device can realize three optical states in a single material—transparent, mirror and black.
Dispersion of Solid Metals into Powder Using Extreme Extrusion
Fine dispersion of bulk metals appears at very high extrusion rates and pressures. This phenomenon is interesting not only for material science, but also for the development of new technologies.
Mimicking Butterflies to Make Silica Thin Films
New silica microsphere films mimic the striking color display of the Morpho butterfly, with the added advantage of material flexibility.
Metamaterial Absorbers: A Review
Padilla and co-workers give an excellent overview on metamaterial absorbers and discuss a selection of examples and related applications in this field.
Gold Nanoantennas Boost the Emission Rate of Conjugated Polymers
The radiative emission rate of poly(3-hexylthiophene) could be greatly enhanced by integrating it into a plasmonic split-dipole nanoantenna.
Polymer adhesives: Teflon made sticky
Creating structures at the nanoscale from the normally non-sticky polymer can create gecko-like adhesion.
Graetzel DSSCs used in new iPad keyboard
A new iPad keyboard from Logitech represents the first major commercial use of dye-sensitized solar cells (DSSCs) developed in the Grätzel lab at the EPFL.
Breaking and Assembling Liquid Crystals
Reversible fragmentation and self-assembling of nematic liquid crystal droplets on functionalized pyroelectric substrates
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